The Daiphgram‑Type piston rod seal is a high‑performance single‑acting dynamic sealing component specially engineered for reciprocating piston‑rod motion within heavy‑duty hydraulic cylinders. Manufactured from premium polyurethane‑based composite material, this rod seal delivers outstanding wear resistance, pressure resistance and low compression‑set performance, maintaining stable sealing capacity under continuous reciprocating movement and fluctuating working pressure.
Optimized sealing lip geometry creates uniform surface contact pressure against the piston‑rod surface. It efficiently prevents hydraulic oil leakage outward from cylinder housing. Thanks to well‑balanced friction characteristics, the Daiphgram‑Type piston rod seal effectively suppresses stick‑slip issues during low‑speed operation and reduces frictional heat accumulation during long‑hour running. It shows reliable compatibility with most mineral‑based hydraulic fluids widely applied in engineering machinery fields.
Built to fit standard sealing groove dimensions, the Daiphgram‑Type piston rod seal supports straightforward installation and convenient spare‑part replacement without extra machining work. It is extensively deployed on excavators, lifting cylinders, mining equipment, agricultural machinery and general‑purpose industrial hydraulic systems. Adopting Daiphgram‑Type piston rod seals helps cut oil leakage failures, mitigate component abrasion, lower maintenance frequency and extend the overall service life of your hydraulic sealing assemblies.
Original text from: Hydraulic and Pneumatic Seals https://www.bszzseal.com/
